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Mercury and Selenium Levels in Swordfish (Xiphias gladius) Fished in the Exclusive Economic Zone of the Republic of Seychelles

Authors: Stephanie Hollanda, Nathalie Bodin, Carine Churlaud, Paco Bustamante

Abstract:

Total mercury (Hg), selenium (Se) and Hg-Se ratios were analyzed in the white muscle, liver and gonads of swordfish, in order to compare concentration between the different tissues and sex, and also the effect of size (fork length). The results show significant difference between tissue types, with the liver having the highest concentration of both Hg and Se. Positive significant correlations between moles of Hg and Se were obtained in the liver and white muscle, but no relationship was obtained in the gonads. No difference in the concentration of Hg and Se was obtained between the sexes in the tissue types, except for Hg in the gonads, which were found to be higher in males. Significant negative relationships were obtained when the Hg-Se ratio was plotted against fork length in all three tissue types.

Keywords: Bioaccumulation, large pelagic fish, mercury, selenium, Western Indian Ocean.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1339608

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References:


[1] C. Enhus, E. Boalt, and A. Bignert, The relationship between mercury and selenium in Baltic herring - a retrospective study. 2011.
[2] M. M. Storelli, R. Giacominelli-Stuffler, A. Storelli, and G. O. Marcotrigiano, “Accumulation of mercury, cadmium, lead and arsenic in swordfish and bluefin tuna from the Mediterranean Sea: A comparative study,” Mar. Pollut. Bull., vol. 50, no. 9, pp. 1004–1007, Sep. 2005.
[3] N. S. Bloom, “On the Chemical Form of Mercury in Edible Fish and Marine Invertebrate Tissue,” Can. J. Fish. Aquat. Sci., vol. 49, no. 5, pp. 1010–1017, May 1992.
[4] M. P. Rayman, “Selenium and human health,” Lancet Lond. Engl., vol. 379, no. 9822, pp. 1256–1268, Mar. 2012.
[5] U. Tinggi, “Selenium: its role as antioxidant in human health,” Environ. Health Prev. Med., vol. 13, no. 2, pp. 102–108, Mar. 2008.
[6] G. F. Combs Jr. and W. P. Gray, “Chemopreventive Agents: Selenium,” Pharmacol. Ther., vol. 79, no. 3, pp. 179–192, Oct. 1998.
[7] C. E. Stillwell and N. E. Kohler, “Food and feeding ecology of the swordfish Xiphias gladius in the western North Atlantic Ocean with estimates of daily ration,” Mar. Ecol. Prog. Ser., vol. 22, no. 3, pp. 239–247, 1985.
[8] Codex Alimentarius Commission, “Codex Committee on Contaminants in Foods (CCCF5_INF1),” Accessed 21 March 2011, available at: http://WWw.fao.org/fao-who-codexalimentarius/meetings-reports/en/?y=2011&mf=07, 2011.
[9] EC, Commission Directive 2006/13/EC of 3 February 2006 amending Annexes I and II to Directive 2002/32/EC of the European Parliament and of the Council on undesirable substances in animal feed as regards dioxins and dioxinlike PCBs. 2006.
[10] M. L. A. Cuvin-Aralar and R. W. Furness, “Mercury and selenium interaction: A review,” Ecotoxicol. Environ. Saf., vol. 21, no. 3, pp. 348–364, Jun. 1991.
[11] J. J. Kaneko and N. V. C. Ralston, “Selenium and Mercury in Pelagic Fish in the Central North Pacific Near Hawaii,” Biol. Trace Elem. Res., vol. 119, no. 3, pp. 242–254, Dec. 2007.
[12] E. Pelletier, “Mercury-selenium interactions in aquatic organisms: A review,” Mar. Environ. Res., vol. 18, no. 2, pp. 111–132, Jan. 1986.
[13] L. J. Raymond and N. V. C. Ralston, “Selenium’s importance in regulatory issues regarding mercury,” Fuel Process. Technol., vol. 90, no. 11, pp. 1333–1338, Nov. 2009.
[14] P. Bustamante, A. F. González, F. Rocha, P. Miramand, and A. Guerra, “Metal and metalloid concentrations in the giant squid Architeuthis dux from Iberian waters,” Mar. Environ. Res., vol. 66, no. 2, pp. 278–287, Aug. 2008.
[15] V. Branco, C. Vale, J. Canário, and M. N. dos Santos, “Mercury and selenium in blue shark (Prionace glauca, L. 1758) and swordfish (Xiphias gladius, L. 1758) from two areas of the Atlantic Ocean,” Environ. Pollut., vol. 150, no. 3, pp. 373–380, Dec. 2007.
[16] J. Kojadinovic, M. Potier, M. Le Corre, R. P. Cosson, and P. Bustamante, “Mercury content in commercial pelagic fish and its risk assessment in the Western Indian Ocean,” Sci. Total Environ., vol. 366, no. 2–3, pp. 688–700, Aug. 2006.
[17] E. Mendez, H. Giudice, A. Pereira, G. Inocente, and D. Medina, “Total Mercury Content—Fish Weight Relationship in Swordfish (Xiphias gladius) Caught in the Southwest Atlantic Ocean,” J. Food Compos. Anal., vol. 14, no. 5, pp. 453–460, Oct. 2001.
[18] L. R. Monteiro and H. D. Lopes, “Mercury content of swordfish, Xiphias gladius, in relation to length, weight, age, and sex,” Mar. Pollut. Bull., vol. 21, no. 6, pp. 293–296, Jun. 1990.